Stainless Steel Flanged Bearings Manufacturers

Our Stainless Steel Flanged Bearing Range

We offer five material families within the Flanged Bearings category. Each grade is available in metric and inch series, with bore sizes from 1 mm to 10 mm and flange diameters up to 26 mm. The table below summarizes the application fit for each grade.

For detailed series dimensions and load ratings, please refer to the specific grade pages: SUS304 Flange Bearings and SUS316 Flange Bearings.

Application Fit and Material Selection

Choosing the right stainless grade depends on the operating environment and load requirements. Our engineering team evaluates the following factors when recommending a material:

• Corrosion exposure: For washdown or saltwater environments, SUS316 provides the highest resistance. SUS304 is suitable for most food and medical applications.
• Hardness and wear: If the bearing must withstand high radial loads or abrasive particles, SUS420 or SUS440 offer higher surface hardness.
• Magnetic properties: Austenitic grades (304, 316) are essentially non-magnetic, which is critical for sensitive electronic or medical equipment.
• Temperature range: Martensitic grades can be heat-treated for higher temperature stability, while austenitic grades maintain corrosion resistance up to 300°C.

We also produce hybrid versions with ceramic balls for electrical insulation or reduced friction in high-speed applications.

Critical Specifications and Performance

Our stainless steel flanged bearings are manufactured to ISO P0/P6 precision classes as standard, with P5 available on request. Key specifications include:

• Bore diameter: 1 mm to 10 mm (metric) and 1/8" to 3/8" (inch)
• Flange outer diameter: Up to 26 mm, with flange thickness matched to the outer ring
• Radial clearance: C2, CN, C3, or custom per application
• Noise level: Below 30 dB for miniature series, verified by anderon meter
• Sealing: Open, ZZ (metal shield), 2RS (contact rubber seal), or non-contact RS

Every bearing is 100% inspected for dimensional accuracy, radial runout, and noise. We use high-precision testers that measure vibration in three bands to ensure consistent quality.

Configuration Options and Customization

We understand that standard catalogs rarely cover every design constraint. Our customization service covers:

• Flange geometry: Custom flange diameter, thickness, and mounting hole pattern
• Sealing and shielding: Different seal materials (NBR, FKM, PTFE) and shield designs
• Cage material: Stainless steel, polyamide, or PTFE for high-temperature or chemical resistance
• Lubrication: Grease type and fill quantity tailored to speed, temperature, and torque requirements
• Non-standard bore or OD: We can produce bearings to your drawing with tolerances as tight as ±0.002 mm

Our R&D team works from your drawing, sample, or even a rough sketch to develop a prototype within 2–3 weeks. We then validate the prototype under your operating conditions before mass production.

Quality Assurance and Compliance

As a National High-Tech Enterprise, we maintain a closed-loop quality system from raw material incoming inspection to final packaging. Our certifications include IATF 16949, RoHS, CE, and SGS, which are available for audit upon request. Each production batch is accompanied by a material certificate and dimensional inspection report.

We also conduct salt spray testing on stainless grades to verify corrosion resistance, and we can provide test reports for specific environments if required.

Integration and Installation Support

Flanged bearings are designed to simplify mounting: the flange provides axial location, eliminating the need for a separate shoulder or snap ring. Our technical team can advise on:

• Housing bore tolerance: Recommended H7 or J7 for the bearing seat
• Flange mounting: Bolt circle and screw size based on the flange thickness
• Axial load capacity: The flange can handle moderate axial loads, but for higher thrust we recommend a separate thrust bearing
• Lubrication and maintenance: For sealed bearings, no relubrication is needed; for open versions, we provide a lubrication schedule

We also offer installation tooling recommendations and can supply pre-assembled bearing units with custom shafts if needed.

Information We Use to Prepare Your Solution

Frequently Asked Questions

What stainless steel grades do you offer for flanged bearings?

We offer SUS420, SUS440, SUS304, SUS316, and specialty stainless alloys. SUS420 and SUS440 are martensitic with higher hardness; SUS304 and SUS316 are austenitic with superior corrosion resistance and non-magnetic properties.

Can you customize the flange dimensions?

Yes, we can modify flange outer diameter, thickness, and mounting hole pattern to match your housing. We also produce non-standard bore sizes and overall widths.

What sealing options are available?

We offer open, metal shield (ZZ), contact rubber seal (2RS), and non-contact rubber seal. Seal material can be NBR, FKM, or PTFE depending on temperature and chemical compatibility.

How do you ensure corrosion resistance?

We use certified stainless steel raw material and perform salt spray testing on representative samples. For SUS316, we verify molybdenum content and passivation quality.

Do you provide test reports with each shipment?

Yes, each batch includes a material certificate, dimensional inspection report, and noise/vibration test results. Additional reports such as salt spray or temperature testing can be provided on request.

Can you produce bearings to our drawing?

Absolutely. We are an OEM/ODM manufacturer. Send us your drawing or sample, and our engineering team will develop a prototype and then scale to mass production.